Please help me! Urgent!

The keywords in your post are "payment information" - leading me to conclude that you are in a Store. The Stores want to compare where your payment method is physically located to the choice you make thereafter. You must reside (and pay from) the country's Store location for legal jurisdiction reasons. For example, I live in the US and could not make a purchase in the UK Stores.

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see if any of these help ...

Change or remove your payment information from your iTunes Store account (Apple ID)

Create an iTunes Store, App Store, or iBooks Store account without a credit card or other payment method - Apple Support

What do I do if I do not have a credit card?

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Let's try to narrow it down some... which are you trying?

iPhone, iPad, or
iPod touch

Mac or PC

Family Sharing

You said earlier "change" your account. Your screenshot indicates "CREATE" account.

try this instead > Create an iTunes Store, App Store, or iBooks Store account without a credit card or other payment method - Apple Suppor…